""ET TROJAN Possible Upatre or Dyre SSL Cert Jan 22 2015""
SID: 2020290
Revision: 3
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2015_01_23, deployment Perimeter, malware_family Upatre, signature_severity Critical, tag SSL_Malicious_Cert, tag Exploit_Kit, tag Downloader, tag Upatre, updated_at 2019_08_15
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: [443,4443]
Destination Network: $HOME_NET
Destination Port: any
Flow: established,from_server
Contents:
-
Value: "|16|"
-
Value: "|0b|"
-
Value: "|02 09 00|"
-
Value: "|06 03 55 04 06 13 02 43 4e|"
-
Value: "|06 03 55 04 08 0c 02|ST"
-
Value: "|55 04 07|"
Within: 3
PCRE: "/^.{2}(?P[a-zA-Z0-9]{24}[01]).+?\x55\x04\x07.{2}(?P=var)/Rs"
Special Options: